Throttle-valve.



H. S. VINCENT.

THROTTLE VALVE.

APPLICATION FILED no.8. 1916.

1,227,097. Patented May 22,1917.

IHIIIIIIII HARRY s. vmcnnzr, or nrnenwoon, NEW JERSEY.

. THROTTLE-VAL E,

To all whom it may mm Be itkn'own' that 1, HARRY s. viNcm'T,

of Ridgewood, in the county of Bergen and V I. .State of New Jersey, have invented a ce'rtain; new and useful Improvement, in Throttle-Valves', of which improvement the following is a sp'ecification. I My ''invention relates of the double puppet type, and its object is to provide ,a throttle valve of such type which will/be of simple" and inexpensive;

rate therefrom. I

constructiomland afford the advantages of capability ofbeing balanced to any desired degree,'of presenting a. maximum area for delivery of steam with a"minimu1nof ob-' struction of the surrounding dome, and of downwardly delivering the steam from both disks of the valve, thereby preventing ma ference of'currents. p

The improvement claimed is. hereinafter fully set forth."

In the accompanying drawingsrFigure 1 is a verticalvsectiomon the line as w of Fig. 2, through the throttle valve dome of a locomotive boiler and through a throttle valve illustrating an application of my invention; Fig. 2, .a plan or top view; and Fig. 3, ahorizontal of Fig. 1.

In the practice of my invention, referring descriptively to the specific embodiment thereof which is herein exemplified, I provide a" stand pipe, 1, which is supportedin theusual'manner in a dome, A, of a steam boiler, and in which, a bowl shaped chamher, 1, is formed a short distance below its top; The stand pipeis, as inthe ordinary constructions, open at its top, and the dry pipe, 2, through which steam is supplied to the cylinder or cylinders,'is connected to a lateral nozzle, 1", at its bottom.

A balancing ring, 3, on the upper portion of the inner surface of which there is formedv an inverted conical valve seat, 3, is fitted in thetop of the stand pipe,1,.a steam tight joint beingformed' between its outer surface and the stand pipe, grinding." Inasmuch as the balancing ring is continuously subjected to steam pressure acting to retain it in position, during the periods'in which the boiler is under steam,

it is not of importance. that it should be positively connected to the stand pipe, except' to the extent that it is advisable to prevent 'itsundesired rotation therein when the appliance is in service. Any suitable Specification of Letters Patent.

to throttle valves 1 will be obvious that" peripheral clamping the ordinary manner.

throttle valve is secured upon the stem, 4,

section, on the line y y PatentedMay 22, 191v.

Application'fiied neceniber 8,1916. Seria1No.'135,8 72. f

and-preferred means of detachably connectingthe balancing ring to the stand pipe may therefore be applied, and, in the instance shown, this consists of a plurality of i cl'amps, 3 which abut on the top of the balancing ring, and are brought to proper bearing thereon bynuts, 3, engaging studs,

'3 fixed in the top of the stand pipe. It

lugs on the balancing ring would constitute the mechanical equivalent of clamps sepa- 45*, from the space-belowthe stand pipe, 1,

to and through the chamber, 1 thereof,

said stem'being adapted to be raised and loweredby connections toits lowerend, in

A double puppet adjacent to its upper end, by a nut, 49, said valve comprising upper and lower bushing sections, 5, 5 secured together by bolts, 5 and nuts, 5. outwardly curved or flared at the upper and The valve sections are lower ends, respectively, of the sections, the

extreme diameter of the lower section not exceeding that which will permit it to be inserted and withdrawn through the open upper end of the stand pipe, when the balancing ring'is removed for that purpose. An inverted conical face, 5 adapted to fit the corresponding valve seat, 3*, of the balancing ring, is formed on theperiphery of the upper valve section, 5, and a conical face, 5 adapted to fit a corresponding valve face, 1, on the top of the chamber, 1?, is formed on the inner surface of the lower valve section,v5 atthe lower end thereof. The upper end of thechamber, 1*, is bored out to receive a disk, 6, which is fixed on the valve stem, 4:, between a collar, 4:,

I thereon, and the nut, 4 by which the valve sections are held in position.

In the operation of the appliance, the throttle valve is raised from, and brought to, its seats, to, respectively, admit steam to, and shut it off from, the dry pipe, 2, by appropriate movements of the valve stem, 4, and when unseated, the disk, 6, is coincidently raised, said disk preventing the en-. trance of wet steam from the lower portion of the dome, and directing the current of steam passing through the valve into the opening exposed by the unseating of the lower valve section.

It will be seen that the stand pipe may be made of the minimum diameter required for the admission of steam, and is devoid of lateral projections, thereby offering a minimum of obstruction of the dome; that by variation of the internal diameter of the balancing ring, the throttle valve may be balanced to any desired degree; and that steam is delivered, without interference of currents, from both sections of the valve.

I claim as my invention and desire to secure by Letters Patent:

1. The combination of an open topped stand pipe, a balancing ring fitted in the top opening thereof, and a double puppet throttle valve, having oppositely inclined faces which seat, respectively, on oppositely inclined faces, of approximately equal area, on the balancing ring and on a subjacent seat in the stand pipe.

2. The combination of an open topped stand pipe; a balancing ring fitted in the top opening thereof; a double puppet throttle valve seating on said balancing ring and on a subjacent seat in the. stand pipe; and means, including a disk connected to and Copies of this patent may be obtained for five cents each, by addressing the movable with said valve, to prevent inward upward access of steam to its lower seat.

3. The combination of an open topped standpipe, having an internal bowl shaped ting seats at the tops of the stand pipe and chamber, respectively; a disk fitting said chamber; and a valve stem on which said valve and disk are secured.

4. The combination of an open topped stand pipe, having an internal bowl shaped chamber; a double puppet throttle valve comprising two abutting sections, the upper of which is adapted to seat at the top of the stand pipe and the lower at the top of the chamber; a disk fitting said chamber; a valve stem on which said valve and disk are secured; and an open ended pipe surrounding the valve stem and extending from the chamber to the exterior of the stand pipe.

HARRY S. VINCENT.

Witnesses:

J. SNowDEN BELL, C. M. PEREZ.

Commissioner of Patentsv Washington, D. 0.

- chamber; a double puppet throttle valve fit- 

